<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	/**
	 * Authenticates a user
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	private $_id;
	private $_username;
	private $_roleId;
	private $_model;
	public function authenticate()
	{
		$user = User::model()->findByAttributes(array('username' => $this->username) );
		//echo $user->username."   ".$user->password." Name:".$user->fname;
		if($user->username !== $this->username){
			$this->errorCode = self::ERROR_USERNAME_INVALID;
		}elseif($user->password !== $this->hash($this->password)){
			$this->errorCode = self::ERROR_PASSWORD_INVALID;
		}
		else{
			$this->errorCode = self::ERROR_NONE;
			$this->_id = $user->id;
			$this->_roleId = $user->groupid;
			$this->_username = $user->username;
			$this->_model= $user;
		}
		return !$this->errorCode;
	}
	public function hash($string){
		return md5($string);
	}
	
	public function getId(){
		return $this->_id;
	}
	
	public function getRoleType(){
		return $this->_roleId;
	}
	public  function getUserName()
	{
		return  $this->_username;
	}
	public  function getModel()
	{
		return $this->_model;
	}
	
}